Patterns

Think of a pattern. It can be a number pattern( numeric), shape pattern( non numeric), or another type of pattern. Post it to the wiki and see if your friends can figure it out. Have fun!

Here's my pattern (Mr. G)

5, 20, 80, 320, , (You may need to use a calculator to solve.)
Maya:Your pattern is x4 so 5x4=20 and 20x4=80 and 80x4=320.
Maya: My pattern is 7, 49, 343, 2401,16807,117649, 823543, 5764801, 40353607. What's my pattern?
Gregory: Maya your pattern is x7 because 7x7=49 7x49=2401 7x2401=16807 7x16807=117649 7x117649=823543 7x823543=5764801 7x5764801=40353607.
Gregory: My pattern is 55,47,50,42,45,37,40,32,35,27,30,22,25,17,20,12,15,
Ali- My pattern is !@#$%^&*()!@#$%^&*()!@#$%&^*()